... ") HMI 2. Atom D525 CPU 3. 3*RS232,2*RS232/422/485,1*PS/2,1*LPT,4*USB,2*GLAN ... than Aluminium) Resistive Touchscreen 5*COM(3*RS232, 2*RS232/422/485), 1*PS/2, 1*VGA, 1*LPT, 4*USB ... to 256M displayI/O Connector5*COM(3*RS232, 2*RS232/422/485), 1*PS/2, 1*VGA, 1*LPT, 4*USB ... .5" 250G SATA HDD, 5*COM(3*RS232, 2*RS232/422/485), 1*PS/2, 1*VGA, 1*LPT, 4*USB ... , 1*Audio 15" HMI with 3*RS232 and 2*RS232/422/485